The Mallik villa is up for sale as the ageing family patriarch Mahendra Mallik (Victor Banerjee) is no longer in control of his floundering business or his warring sons. While non-Bengali rivals are all out to tear it apart, suave NRI Siddhartha Mallik (Priyanshu) steps in with the offer to buy the business and the villa, and restore the company to its original glory.

While the Mallik family is perplexed by his move, Siddhartha falls for Dona (Rituparna), Mahendras adopted daughter, and spills his closely-guarded secret. He is the love child of Mahendra and Sujata (Reema Lagoo), when the two were students in the US. Armed with his attorney (Sabyasachi), Siddhartha now plots to overthrow the non-Bengali businessmen, while also making time to sing and dance with his lady love. After a few chases and abductions, the Malliks are reunited.

Punorutthan goes all out to prophesy a Bengali regeneration in industry, but its bashing of the non-Bengali business community on the flimsiest pretexts leaves a sour taste in the mouth.

While the editing is fast-paced, the narrative is largely cliched. Priyanshu looks dashing in his dark shades and has a lot to prove, but Rituparna and Victor are left with little to do. Most of the action revolves around Sabyasachi, who excels as the Machiavelli hatching a corporate takeover. The song-and-dances are far too many and tiresome.